Supernatural

I know deep in my heart that Sam CAN NOT BE DEAD. I know this. How can we have a season three without Sam? But oh, dear lord. I swear the last five minutes of this show had me sobbing.

Where is Ellen? She wasn't in the fire, right? And the only way Dean knew it was Ash was because of the watch, right? So that means that maybe, Ash is with Ellen somewhere and someone else was wearing his watch, right?